Rank	Countries/Territories	Count	Percent
1	United States	563	47.6%
2	China	301	25.4%
3	Germany	86	7.3%
4	India	45	3.8%
5	Japan	41	3.5%
6	United Kingdom	17	1.4%
7	Russia	13	1.1%
8	Korea, Republic of	13	1.1%
9	Australia	12	1%
10	Canada	9	0.8%
11	Ireland	9	0.8%
12	Hong Kong	7	0.6%
13	Spain	7	0.6%
14	Netherlands	7	0.6%
15	Denmark	6	0.5%
16	Argentina	5	0.4%
17	Italy	5	0.4%
18	Taiwan	4	0.3%
19	Poland	4	0.3%
20	France	4	0.3%
21	Iran, Islamic Republic of	3	0.3%
22	Singapore	3	0.3%
23	Viet Nam	3	0.3%
24	Turkey	2	0.2%
25	South Africa	2	0.2%
26	Sweden	2	0.2%
27	Romania	2	0.2%
28	Brazil	2	0.2%
29	Estonia	1	0.1%
30	Indonesia	1	0.1%
31	Israel	1	0.1%
32	Mexico	1	0.1%
33	Norway	1	0.1%
34	Philippines	1	0.1%